Tablet Press Machine Types: TDP, THDP, DP, ZP, ZPW and Heavy-Duty Models Explained

Choosing the right tablet press depends on more than production capacity. Tablet size, compression force, production volume, tablet structure, control requirements and material characteristics all affect which machine is suitable for a specific application.

Tablet presses can generally be divided into single punch tablet presses and rotary tablet presses. Within these two categories, different machine series are designed for laboratory testing, small-batch production, continuous manufacturing, two-layer tablets or large and high-pressure tablets.

This guide explains the main tablet press types available from LPMIE, including the TDP, THDP, DP, ZP, ZPW and ZP15B/ZP17B series, and provides a practical comparison to help you choose the right tablet compression machine.

1. What Is a Tablet Press Machine?

A tablet press machine compresses powder or granulated material into a defined tablet shape using a punch and die.

During the compression process, the material is filled into a die cavity, compressed under controlled pressure and then ejected as a finished tablet.

The basic tablet compression process is similar across different machines, but the machine structure can vary significantly.

The two main types are:

• Single Punch Tablet Press

• Rotary Tablet Press

The main difference is the number of compression stations and the way the punches and dies operate during production.

2. Single Punch vs. Rotary Tablet Press

Single Punch Tablet Press

A single punch tablet press uses one punch and die set for tablet compression. The machine completes the filling, compression and ejection process at a single compression station.

Single punch presses are generally suitable for:

• Laboratory testing

• Product development

• Small-batch production

• Tablet formulation testing

• Applications requiring a compact machine

Typical LPMIE single punch series include:

TDP Series, THDP Series and DP Series.

Rotary Tablet Press

A rotary tablet press uses multiple punch and die sets installed around a rotating turret.

As the turret rotates, different punch stations continuously complete filling, compression and tablet ejection. This allows the machine to achieve much higher production efficiency than a single punch press.

Rotary tablet presses are generally suitable for:

• Continuous production

• Medium- and high-volume manufacturing

• Pharmaceutical production

• Nutraceutical and food tablet production

• Applications requiring higher production efficiency

Typical LPMIE rotary tablet press series include:

ZP Series, ZPW Series and ZP15B/ZP17B.

3. TDP Series Single Punch Tablet Press

The TDP Series Single Punch Tablet Press is a conventional single punch tablet press designed for small-batch production, laboratory testing and product development.

The machine uses a single punch and die set and provides adjustable tablet compression and forming parameters according to the selected model.

Best For

• Laboratory testing

• Small-batch tablet production

• Product development

• Basic tablet compression applications

Key Advantages

• Compact single punch structure

• Simple operation

• Adjustable tablet parameters

• Suitable for different tablet shapes with appropriate tooling

• Practical solution for small-scale production

Recommended when: you need a conventional and practical single punch tablet press without the complexity of a rotary production machine.

→ View the TDP Series Single Punch Tablet Press

4. THDP Series Lightweight Single Punch Tablet Press

The THDP Series Single Punch Tablet Press is designed for users who need a lighter and more portable tablet compression machine.

The series includes THDP-3, THDP-5 and THDP-6 configurations, with maximum compression forces from 30 to 60 kN and tablet diameters up to 20 mm, depending on the model.

The THDP Series is particularly suitable for laboratory testing, product development and small-batch applications where machine portability is important.

Best For

• Laboratory testing

• Product development

• Small-batch production

• Portable applications

• Flexible use in different locations

Key Advantages

• Lightweight and compact design

• Easy to transport

• Multiple model configurations

• Maximum tablet diameter up to 20 mm

• THDP-6 uses a worm gear drive for smooth, low-noise operation

• THDP-6 uses a knurled pressure adjustment screw for convenient tool-free adjustment

Recommended when: portability and compact size are more important than high-volume production.

→ View the THDP Series Single Punch Tablet Press

5. DP Series PLC-Controlled Single Punch Tablet Press

The DP Series Single Punch Tablet Press is designed for applications requiring more advanced control and production monitoring than a conventional mechanical single punch press.

The machine uses a PLC and touchscreen control system, allowing operators to monitor and adjust key parameters such as compression pressure, filling depth and tablet thickness.

Depending on the configuration, the machine can also provide functions such as tablet counting, preset production quantities, automatic shutdown, overpressure protection and data export.

Best For

• Pharmaceutical R&D

• Laboratory applications

• Small-scale controlled production

• Applications requiring touchscreen operation

• GMP-oriented production environments

Key Advantages

• PLC control

• Touchscreen operation

• Pressure and parameter monitoring

• Automatic counting and shutdown

• Overpressure alarm and protection

• Enclosed production area

• 304 stainless steel product-contact parts

Recommended when: you need more process control and monitoring than a standard single punch tablet press can provide.

→ View the DP Series Single Punch Tablet Press

6. ZP Series Rotary Tablet Press

The ZP Series Rotary Tablet Press is designed for continuous tablet production using multiple punch and die stations.

Different models are available with different numbers of punch stations, tablet diameter ranges and production capacities.

For example, the ZP-5B, ZP-7B, ZP-9B, ZP-11B and ZP-12B models provide different production capacities while supporting continuous rotary compression.

Best For

• Continuous tablet production

• Pharmaceutical tablets

• Nutraceutical tablets

• Food and candy tablets

• Medium-volume production

Key Advantages

• Multiple punch and die stations

• Continuous rotary compression

• Higher production capacity than single punch presses

• Different models for different tablet sizes and output requirements

• Suitable for round and shaped tablets with appropriate tooling

Recommended when: you need continuous production rather than the intermittent operation of a single punch machine.

→ View the ZP Series Rotary Tablet Press

7. ZPW Series Double Rotary Tablet Press

The ZPW Series Double Rotary Tablet Press uses a double-compression structure with two independent feeding systems and two compression stages.

The first material is filled into the die cavity and compressed to form the first layer. The second material is then added to the same die cavity before the final compression forms the complete tablet.

This structure makes the ZPW Series particularly suitable for bilayer and two-color tablet production.

Best For

• Bilayer tablets

• Two-color tablets

• High-output production

• Tablets requiring two different materials

• Continuous pharmaceutical and nutraceutical production

Key Advantages

• Double compression structure

• Two independent feeding systems

• Sequential filling of two materials

• Suitable for bilayer tablet production

• Suitable for two-color tablet production

• High production capacity

• PLC control and GMP-oriented design

Recommended when: your tablet requires two layers or two different materials to be compressed into one finished tablet.

→ View the ZPW Series Double Rotary Tablet Press

8. ZP15B / ZP17B Heavy-Duty Rotary Tablet Press

The ZP15B and ZP17B are designed for applications requiring larger tablet diameters and higher compression forces.

Compared with standard ZP rotary tablet presses, these heavy-duty models are suitable for large tablets and difficult-to-form materials that require greater compression force.

ZP15B

• Maximum pressure: 150 kN

• Maximum tablet diameter: 40 mm

• Turret speed: 10–25 r/min

ZP17B

• Maximum pressure: 120 kN

• Maximum tablet diameter: 36 mm

• Turret speed: 10–25 r/min

Both models use variable-frequency speed control and are designed for stable operation under higher compression requirements.

Best For

• Large tablets

• High-pressure applications

• Difficult-to-form formulations

• Effervescent tablets

• Large pharmaceutical or chemical tablets

Recommended when: a standard rotary tablet press cannot provide the required tablet diameter or compression force.

→ View the ZP15B / ZP17B Series

9. Tablet Press Machine Comparison

*Maximum values depend on the specific model and tooling configuration.

10. How to Choose the Right Tablet Press?

The best tablet press depends on several key production requirements.

Choose TDP if:

You need a conventional single punch tablet press for laboratory testing, product development or small-batch production.

Choose THDP if:

You need a lightweight and portable single punch tablet press for flexible applications.

Choose DP if:

You need PLC control, touchscreen operation, parameter monitoring and additional production management functions.

Choose ZP if:

You need continuous rotary tablet production with multiple punch and die stations.

Choose ZPW if:

You need to produce bilayer or two-color tablets using two different materials.

Choose ZP15B or ZP17B if:

You need larger tablet diameters or higher compression forces than standard rotary tablet presses can provide.

11. What Should You Confirm Before Choosing a Tablet Press?

Before selecting a tablet press, confirm the following parameters:

1. Tablet Diameter

For round tablets, provide the required tablet diameter.

For irregular or shaped tablets, the maximum diagonal dimension should also be considered.

2. Tablet Thickness

The required finished tablet thickness determines the suitable filling and compression range.

3. Compression Force

Different materials and tablet formulations may require different compression forces to achieve the required hardness and integrity.

4. Production Capacity

Determine the required tablets per hour and select a machine with sufficient production capacity.

5. Tablet Structure

If the product is a standard single-layer tablet, a conventional TDP or ZP machine may be suitable.

If the tablet requires two layers or two colors, a ZPW double rotary tablet press may be more appropriate.

6. Control Requirements

For applications requiring touchscreen operation, parameter monitoring and production management, a PLC-controlled DP Series machine may be considered.

12. Single Punch or Rotary Tablet Press?

The choice between a single punch and rotary tablet press mainly depends on production scale and operating requirements.

There is no single tablet press that is ideal for every application. The correct machine should be selected according to tablet size, material characteristics, compression requirements, production capacity and required level of automation.

13. Frequently Asked Questions

What is the difference between a single punch and rotary tablet press?

A single punch tablet press uses one punch and die set and is generally suitable for laboratory testing and small-batch production. A rotary tablet press uses multiple punch and die stations on a rotating turret for continuous production.

Which tablet press is suitable for small-batch production?

TDP, THDP and DP Series single punch tablet presses are suitable for different small-batch and laboratory applications. The choice depends on portability, control requirements and tablet size.

Which tablet press is suitable for two-color tablets?

The ZPW Series is designed for double compression and can be used to produce bilayer and two-color tablets using different materials.

Which tablet press is suitable for large tablets?

ZP15B and ZP17B are designed for large tablets and higher compression requirements, supporting maximum tablet diameters of 40 mm and 36 mm respectively.

What information is needed to select a tablet press?

The main information includes tablet diameter, tablet thickness, required production capacity, compression force, tablet shape, material characteristics and whether single-layer or bilayer production is required.

14. Explore LPMIE Tablet Press Solutions

LPMIE provides different tablet press configurations for laboratory testing, small-batch production, continuous rotary compression, bilayer tablet production and large-tablet applications.

Explore the tablet press series to compare machine specifications and find a suitable solution for your production requirements.

TDP Series Single Punch Tablet Press →

THDP Series Single Punch Tablet Press →

DP Series Single Punch Tablet Press →

ZP Series Rotary Tablet Press →

ZPW Series Double Rotary Tablet Press →

ZP15B / ZP17B Heavy-Duty Rotary Tablet Press →

Need help selecting a machine? Contact the LPMIE technical team for a recommendation based on your tablet size, material and production requirements.